If/Unless - Zero, First and Second Conditional

Function​

Conditional sentences express the idea that an action in the main clause can only take place if a condition in the if-clause is fulfilled.

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​'Unless' is a conjunction that can also be used with a conditional meaning, but there are rules we follow when we use it.

Some text here about the topic of discussion

Unless has a negative meaning similar to 'if .. not'.

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It expresses a negative condition, but it is always followed​ with a positive verb

​Some text here about the topic of discussion.

​Unless = "if not"

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If we don't save water, there may soon be shortages.

​​"If not"

Unless we save water, there may soon be shortages.

Unless